Sheet Metal Workers’ Local Union 33 Local 33 is an amalgamated local union of seven prior unions formed January 1, 1988, and currently represents over 4,500 members throughout all but a few counties of Ohio and West Virginia.


The Sheet Metal Workers’ International Association (SMWIA) represents 150,000 skilled craftspersons in the unionized sheet metal industry throughout the United States and Canada.


The International Training Institute (ITI) provides comprehensive training programs for journeyman and apprentice labor union members in the Sheet Metal and Air Conditioning industries.


The Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA) An international association of union contractors, is dedicated to providing products, services, and representation to enhance members’ businesses, markets, and profitability.


The American Welding Society (AWS)  was founded in 1919 as a multifaceted, nonprofit organization with a goal to advance the science, technology, and application of welding and related joining disciplines.  From factory floor to highrise construction, from military weaponry to home products, AWS continues to lead the way in supporting welding education and technology development to ensure a strong, competitive, and exciting way of life for all Americans.


The Testing, Adjusting and Balancing Bureau (TABB) is committed to the welfare of the general public, engineers, building owners and design professionals to assure that all building environmental systems are installed properly and all systems are adjusted to these design specifications.  TABB Certified Professionals subscribe to a strict Code of Conduct and pledge to regularly upgrade their skill level to meet cutting-edge technological advances in the heating, ventilation and air conditioning industry.


The North American Insulation Manufactures Association (NAIMA) is a trade association of North American (United States, Canada and Mexico) manufacturers of fiber glass, rock wool, and slag wool insulation products.  NAIMA members manufacture the vast majority of fiber glass, rock and slag wool insulations produced and used in North America.


Project Best The Upper Ohio Valley Building and Construction Trades Council and the Ohio Valley Construction Employers Council have joined their resources and collective membership to create a realistic synergistic relationship for labor-management decisions.  Their aggregate efforts are aimed at ECONOMIC GROWTH & INCREASED JOB OPPORTUNITIES for the labor force in the Upper Ohio Valley.


The Parkersburg-Marietta Contractors Association (PMCA) is a non-profit organization of construction contractors and associates formed to promote the general welfare of its members; to promote the construction contracting business; to promote the public relations of the construction contracting business and to engage in collective bargaining on behalf of its members.


LEAD is a joint labor-management hazard recognition safety training and drug screening program.  The safety training and drug-sceening program is funded by the contractors and operated under the Labor Education and Development (LEAD) Program.